用磁性法定量测定钢中残余奥氏体中的标样判定  

The Criterion of Standard Sample for Measuring Quantity of Retained Austcnite(A_R) in Steel

作　　者：马长英[1] 吕宏[1] 赵钟涛[2] 

机构地区：[1]钢铁研究总院,助理工程师北京100081 [2]北京科技大学

出　　处：《物理测试》1993年第6期277-280,共4页Physics Examination and Testing

摘　　要：本文以45CrMoNiV高强度钢为例,研究了在几种热处理状态下钢中残余奥氏体(以下简称为A_R)含量的变化。将穆斯堡尔谱法(MS)和磁性法(Mag)测量A_R的结果进行对比,分析了几种热处理制度下制成的标样对Mag测量结果的影响。探讨了制取标样的热处理制度的判定依据。In this paper the quantities of retained austenite in various heat treated 45CrMoNiV alloy structure steel have been measured and studied. A comparison was made b tween the experimental results made by Mssbauer spectroscopy (MS) and Magnetic Method (Mag.M). The effect of selected standard samples in different state on the quantitatire resuit of Mag. M was analyzed. The experimental results show that when magnetic standard sample was correctly selected according to MS the quantities of A_R measured by MS and Mag. M have a good coincidence. As a deduction of this conclusion the correct selection of heat treatment in making Mag. M standard sample was discussed.

关 键 词：残余奥氏体 磁性测量 穆斯堡尔谱学 

分 类 号：TG142.15[一般工业技术—材料科学与工程]